Export the keys from your current client (which should be just a few) and then replace your wallet.dat with the same file from the wallet that hold the 1 million private keys, then import your original keys and you're all set.

When a venture raises capital in bitcoins it spends those on assets and contracts tied to fiat money. As a result if the exchange rate rises, the venture's earnings are at a lower rate (in terms of bitcoins). As a result, the lower dividends cause the valuation for the venture to drop...

There are several major differences. Bitcoin is a currency with a built in payment system for its currency. Ripple is a payment system for arbitrary currencies with support for cross-currency transactions. One big difference is that currencies in Ripple are represented as debts (IOUs)...

How can one embed custom data in block headers? Is the timestamp in the genesis block relevant? How is block-solution-withholding a threat to mining pools? What are the advantages/disadvantages of a continuously decreasing block reward compared to the current method? Bitcoin Block Siz...

Put up an ad on LocalBitcoins.com . You possibly might find a tourist arriving with bitcoins who is looking for Argentine pesos. Or perhaps you'll find a local Bitcoin miner who is simply looking to cash out some bitcoins for your pesos. Are there any goods that you could pay for with...

A pre-defined schedule limits the total number of bitcoins so that they gradually approach a total of 21 million (ignoring those that have been lost through deleted or misplaced wallet files). The limit of 21 million bitcoins is "hard-wired" in to the protocol , and there will never b...

I have several Yubikeys and would like to use one or more with MtGox.... however it seems that I can only use keys purchased from Mt Gox on their site. Why did Mt Gox choose to implement security this way? Suppose I'm creating my own secure website based on Yubikey.. what are the cond...

When miners invest in mining hardware, they get a device that generates hashes at a rate of X, essentially forever. What they will get from it is X times the integral from now to infinity of a*B*P/D, where P is the value of a bitcoin, D is the difficulty, B is the block reward and a i...